176 



Hydriomena elisata Stkr. 



The type specimen cannot be distinguished from the common 

 European Ortholitha bipunctaria to which in fact Strecker compares 

 it. We imagine there has been an error in labelling the specimen and 

 that the name should be dropped from our lists. 



Hydriomena similaris Hist. 



This species has been generally totally misidentified owing to a 

 grave error on the part of Dr. Hulst ; similaris was described from 

 specimens taken in Colorado by Mr. Graef and the true types (1 $, 

 1 9 ) are in the Brooklyn Inst. Collection along with a spurious 'type' 

 from Maine. In the Hulst Collection the type is labelled 'Nevada' 

 and it is from this spurious type that the identifications of the species 

 have doubtless been made, for it represents a species remarkably close 

 to ruberata Frey, in fact so close that we have never been able to 

 separate the two satisfactorily. The types in Brooklyn are entirely 

 different and bear out the original description excellently which cer- 

 tainly cannot be said to be true of Hulst's specimen ; similaris proves 

 according to these true types to be the same species as that described 

 later by Mr. Swett under the name glenwoodata and this latter name 

 must therefore unfortunately become a synonym. The species was 

 figured in our Contributions Vol. I, No. 4, PI. 14, Fig. 24. 



Xanthorhoe nemorella Hist. 



The California specimen mentioned by Hulst in the description 

 of the above species is a 9 from Sauzalito (Jan.) according to the 

 Hulst collection ; it is, however, a worn specimen of some Hydriomena 

 species and has nothing to do with the other types from Aleutian Is., 

 Alaska to which the name should be held. 



Xanthorhoe illocata Hist. 



According to the Hulst Collection the type series seems to have 

 been mixed as there are two distinct species under this name, one 

 being a Dysstroma close to glacialis as far as can be told, and the 

 other, represented by a single specimen of which only the fore wings 

 are present and these rubbed, being a Xanthorhoe and apparently the 

 same as nemorella Hist., it would seem that the type should be re- 

 stricted to this specimen as it fits in much better with the original 

 diagnosis than do the others; a similar $ is in the Neumoegen Col- 

 lection. 



